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Find the correct name and condensed molecular formula for the given group of compounds:
  
 
Answer variants:
1- Methoxybutane
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Ethanal
Chlorine
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Nihonium
  
1. \(C_5H_{12}O\)
 
     Name :               Structure
 
   
 
2.  \(C_2H_4O\) 
 
  Name :               Structure